Unlocking iPhone 2G that might have 3.1.3

[turtleraj]

I bought an iPhone 2G (first generation) off of eBay with hopes to unlock it to use on T-Mobile. The listing didn't say the firmware of the device and I didn't think it mattered because I thought that you can always downgrade without a problem. After doing some research on 3.1.3, I realized that wasn't the case.

If the iPhone 2G comes with 3.1.3 already installed on it, can I still downgrade to 3.1.2 and jailbreak/unlock the phone to work on T-Mobile? Does the 3.1.3 update for the iPhone 2G affect the baseband like it does for the 3G and the 3GS?

Any help would be greatly appreciated!

Anybody?

[Bby Scroopy]

yes u can downgrade. you can actually leave it on 3.1.3 fw and jailbreak and unlock it but with redsn0w. 3.1.3 does not update baseband. if u leave it on 3.1.3 things like MMS and tethering wont work

[kineticum]

before update did have 2.2 on my 2G phone, than I did like this post says and now everything works just fine except wireless doesnt
when I connect with CYDIA: (cached failure, fail to fetch, host unreachable,etc..)also safari
iPhone Jailbreak Guides | iPhone Tutorials | ModMyi.com Blog Archive How to Jailbreak/Unlock 3.1.3 iPhone 2G Windows & OS X

help anybody?

[Bby Scroopy]

did you restore to 3.1.3? it is best to restore and if you use redsn0w i have noticed wifi, youtube and maps have no problem